The earliest professional diver was a pearl picker, that is, a pearl picker. The government has set up a special official to collect pearls. From Shang and Zhou Dynasties to Tang and Song Dynasties, pearl pickers continued to collect pearls in primitive ways. In a family that collects pearls, boys have to be trained in diving skills since childhood.

There are many hard roads behind the rich pearls in ancient China.

In the ancient southeast coastal areas, because it was rumored that the coastal areas did not produce grain but only pearls, and because the reputation of the southeast coastal areas rich in precious jewelry was widely circulated at home and abroad, the precious jewelry produced in the southeast coastal areas became the main source of local government income at that time.

At that time, fishermen had to venture out to sea to collect pearls to meet the strict tax requirements of ancient local governments. During the Wei, Jin, Southern and Northern Dynasties, due to the constant disputes and frequent wars in the world at that time, the ruling class began to intervene in the coastal pearl mining industry to increase tax revenue and fiscal revenue.

Since then, bureaucratic forces have carried out strict militarized management of coastal residents, increased tax oppression on coastal residents, and forced coastal residents to collect pearls in the sea. Therefore, coastal residents were forced to risk their lives to collect pearls.